<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
		  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
		  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
		  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图区域 -->
		<el-card class="box-card">
			<el-row :gutter="20">
				<el-col :span="7">
					<el-input placeholder="请输入内容" v-model="queryInfo.query" clearable
					 @clear="getUserList"
					 >
						 <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
					</el-input>
				</el-col>
				<el-col :span="4">
					<el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
				</el-col>
			</el-row>
			<!-- 用户列表区域 -->
			<el-table :data="userlist" border stripe>
				<el-table-column type="index"></el-table-column>
				<el-table-column label="姓名" prop="username"></el-table-column>
				<el-table-column label="邮箱" prop="email"></el-table-column>
				<el-table-column label="电话" prop="mobile"></el-table-column>
				<el-table-column label="角色" prop="role_name"></el-table-column>
				<el-table-column label="状态" >
					<!-- 作用域插槽的用法,通过slot-scope="scope",获取每行中的数据. 存在scope.row中-->
					<template slot-scope="scope">
						<el-switch
						  v-model="scope.row.mg_state"
						  @change="userStateChange(scope.row)"
						  >
						</el-switch>
					</template>
				</el-table-column>
				<el-table-column label="操作" width="180px">
					<template slot-scope="scope">
						<el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
						<el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
						<el-tooltip class="item" effect="dark" content="分配角色" placement="top-start" :enterable=false>
						  <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
						</el-tooltip>
					</template>	
				</el-table-column>
			</el-table>
			<!-- 分页效果部分 -->
			 <el-pagination
			      @size-change="handleSizeChange"
			      @current-change="handleCurrentChange"
			      :current-page="queryInfo.pagenum"
			      :page-sizes="[2, 4, 6, 8]"
			      :page-size="queryInfo.pagesize"
			      layout="total, sizes, prev, pager, next, jumper"
			      :total="total">
			    </el-pagination>
		</el-card>
		<!-- 添加用户的弹出对话框 -->
		<el-dialog
		  title="添加用户"
		  :visible.sync="addDialogVisible"
		  width="50%"
		  @close="addDialogClosed"
		  >
		  <!-- 表单区域 -->
		  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
		    <el-form-item label="用户名" prop="username">
		      <el-input v-model="addForm.username"></el-input>
		    </el-form-item>
			<el-form-item label="密码" prop="password">
			  <el-input v-model="addForm.password"></el-input>
			</el-form-item>
			<el-form-item label="邮箱" prop="email">
			  <el-input v-model="addForm.email"></el-input>
			</el-form-item>
			<el-form-item label="手机" prop="mobile">
			  <el-input v-model="addForm.mobile"></el-input>
			</el-form-item>
	 	 </el-form>
			<!-- 弹出框尾部区域 -->
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="addDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="adduser" >确 定</el-button>
		  </span>
		</el-dialog>
		
		<!-- 修改用户的对话框 -->
		<el-dialog
		  title="修改用户"
		  :visible.sync="editDialogVisible"
		  width="50%"
		  @close="editDialogClosed"
		  >
		  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
		    <el-form-item label="用户名">
		      <el-input v-model="editForm.username" disabled></el-input>
		    </el-form-item>
			<el-form-item label="邮箱" prop="email">
			  <el-input v-model="editForm.email" ></el-input>
			</el-form-item>
			<el-form-item label="手机号" prop="mobile">
			  <el-input v-model="editForm.mobile" ></el-input>
			</el-form-item>
		 </el-form>
		  <span slot="footer" class="dialog-footer">
		    <el-button @click="editDialogVisible = false">取 消</el-button>
		    <el-button type="primary" @click="editUserInfo">确 定</el-button>
		  </span>
		</el-dialog>
	</div>
</template>

<script>
	export default{
		data(){
			//验证邮箱的规则
			var checkEmail=(rule,value,cb)=>{
				//验证邮箱的正则表达式
				const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
				if(regEmail.test(value)){
					//合法的邮箱
					return cb()
				}
				cb(new Error('请输入合法的邮箱'))
			}
			//验证手机号的规则
			var checkMobile=(rule,value,cb)=>{
				const regMobile=/^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18|[0-9]|14[57])[0-9]{8}$/
				if(regMobile.test(value)){
					//合法的邮箱
					return cb()
				}
				cb(new Error('请输入合法的手机号'))
			}
			return{
				//获取用户列表的参数对象
				queryInfo:{
					query:'',
					pagenum:1,
					pagesize:2
				},
				userlist:[],
				total:0,
				//控制添加用户对话框的显示与隐藏
				addDialogVisible:false,
				//添加用户的表单数据
				addForm:{
					username:'',
					password:'',
					email:'',
					mobile:''
				},
				//添加表单的验证规则对象
				addFormRules:{
					username:[
						{ required: true, message: '请输入用户名', trigger: 'blur' },
						{ min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
					],
					password:[
						{ required: true, message: '请输入密码', trigger: 'blur' },
						{ min: 6, max: 15, message: '长度在 6到 15 个字符', trigger: 'blur' }
					],
					email:[
						{ required: true, message: '请输入邮箱', trigger: 'blur' },
						{ validator:checkEmail, trigger: 'blur' }
					],
					mobile:[
						{ required: true, message: '请输入手机', trigger: 'blur' },
						{ validator:checkMobile, trigger: 'blur' }
					]
				},
				// 控制修改用户对话框的显示与隐藏的flag
				editDialogVisible:false,
				//保存修改的用户信息
				editForm:{},
				editFormRules:{
					email:[
						{ required: true, message: '请输入邮箱', trigger: 'blur' },
						{ validator:checkEmail, trigger: 'blur' }
					],
					mobile:[
						{ required: true, message: '请输入手机', trigger: 'blur' },
						{ validator:checkMobile, trigger: 'blur' }
					]
				}
				
			}
		},
		created(){
			this.getUserList()
		},
		methods:{
			async getUserList(){
				const {data:res}=await this.$http.get('users',{params:this.queryInfo})
				if(res.meta.status !==200) return this.$message.error('获取用户失败')
				// console.log(res)
				this.userlist=res.data.users
				this.total=res.data.total
			},
			//监听pagesize改变的事件
			handleSizeChange(newSize){
				this.queryInfo.pagesize=newSize
				this.getUserList()
			},
			// 监听页码改变的事件
			handleCurrentChange(newPage){
				this.queryInfo.pagenum=newPage
				this.getUserList()
			},
			//监听switch开关状态
			async userStateChange(userinfo){
				const {data:res}=await this.$http.put(
				`users/${userinfo.id}/state/${userinfo.mg_state}`
				)
				if(res.meta.status !=200){
					userInfo.mg_state=!userInfo.mg_state
					return this.$message.error('更新用户状态失败')
				}
				this.$message.success('更新用户状态成功')
			},
			addDialogClosed(){
				this.$refs.addFormRef.resetFields()
			},
			adduser(){
				this.$refs.addFormRef.validate(async valid=>{
					if(!valid) return
					//可以发起请求添加新用户
					const {data:res}=await this.$http.post('users',this.addForm)
					if(res.meta.status !==201){
						this.$message.error('添加用户失败')
					}
					this.$message.success('添加用户成功')
					this.addDialogVisible=false
					//重新获取用户数据
					this.getUserList()
				})
			},
			//展示编辑用户信息的对话框
			async showEditDialog(id){
				const {data:res}=await this.$http.get('users/'+id)
				if (res.meta.status !==200){
					return this.$message.error('查询用户信息失败')
				}
				this.editForm=res.data
				this.editDialogVisible=true
			},
			//监听修改用户对话框的关闭事件
			editDialogClosed(){
				this.$refs.editFormRef.resetFields()
			},
			//提交用户的信息修改到数据库中
			editUserInfo(){
				//提交之前需要预校验
				this.$refs.editFormRef.validate(async valid=>{
					//预验证失败则返回结束
					if(!valid) return
					//预验证成功则修改数据库中的用户数据
					const {data:res}=await this.$http.put('users/'+this.editForm.id,{
						email:this.editForm.email,
						mobile:this.editForm.mobile
					})
					if(res.meta.status !==200){
						return this.$message.error('更新用户信息失败！')
					}
					//关闭对话框
					this.editDialogVisible=false
					//刷新数据列表
					this.getUserList()
					//提示修改成功
					this.$message.success('更新数据成功')
				})
			},
			//根据id删除用户的对应信息
			async removeUserById(id){
				this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
				  confirmButtonText: '确定',
				  cancelButtonText: '取消',
				  type: 'warning',
				  }).catch(() => {
						this.$message.info('已取消删除');          
					  });
				//发起请求，从数据库删除用户数据
				 const {data:res}=await this.$http.delete('users/'+id)
				 if (res.meta.status !==200){
					 return this.$message.error('删除失败')
				 }
				 this.$message.success('删除成功!');
				 this.getUserList()
			}
		}
	}
</script>

<style lang="less" scoped> 

</style>
